126779969210

素因数分解:

$2^1\times 5^1\times {\mathrm{643}}^1\times {\mathrm{19716947}}^1$

素因数の和:19717597

約数の個数: 16

約数和(自身を含む): 228558861216

約数和(自身を除く): 101778892006

約数列:

[1, 2, 5, 10, 643, 1286, 3215, 6430, 19716947, 39433894, 98584735, 197169470, 12677996921, 25355993842, 63389984605, 126779969210]

約数ペア:

[(1, 126779969210), (2, 63389984605), (5, 25355993842), (10, 12677996921), (643, 197169470), (1286, 98584735), (3215, 39433894), (6430, 19716947)]